Friction-sleeve water seal



Dec. 9, 1924.

F. A. FETHER FRICTION SLEEVE WATER SEAL Filed Sept. l, 1922 me? faam/C15/4 /ErHE/q.

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Patented Dees, 1924.v

UNITED STATES PAT-ENT "oFFic-s'.

. rumors A. rn'rnna, or Baxnnsrmrn, camromru.

` memoir-SLEEVE wn'rnn snai.

nppumion mea septemter 1, im. serial No. 585,632.

To all whom it comem;

Be it known that' I, FRANCIS A.V FETHER',

'a citizen of the United States, residing at Bakersfield, in the countyof Kern and State of California, have invented'new and usefulImprovements Vin Friction-Sleeve Water Seals, of which the following isa specica- V Another'o jeetis to provide a deep well water seal of fewand inexpensive parts and which are of such characterthat they Y may bereadily attached and installed.

A further objectis to provide a friction.V

sleeve forming a water seal in the well and Q to provide fortheintroduction of aseal of any desired length. r

Other objects and advantages will made manifest in the followingspecification of an embodiment o f the invention illustrated in theaccompanying dra-wings,

wherein:

The figure -is a lon 'tudinal central section of the device slowing anextended v adaptation of thev sleeve.

Y In the sinking of deep wells it is customary to cement t e casing at asuitable level inthe well so as to seal 'o the water bearing Y strata soas to prevent the passageof water 4' theref'rominto the casing and toobtain the maximum -oil flow by eliminating the inflow ofwater. 1 v

In my present` invention the customaryA cementing or cement sealing is ventirely eliminated and I provide means adapted to be lowered with .thecasing ',Shoe to the water level and there mudded or frozen in andVfirmly and frictionally embedded in the well wall so as to form vathorough seal to cut oi i the flowff'wate'r from the water sand into theVlower suction orintake end of the linished string of casing or p ipe.1

A form of the invention 1s shownjwherein alowerv section 2 of casing ofsuitable size Yto receivethe contiguous en vtin of pipe 10which is ofthe sealing device.

Y A Further embodiments, modifications and form a 'seal in the wellhole,

has attached to its lower end a shoe 3, the latter having a turned-downu per portion 4. To the upper end of the casing section 2 there isconnected a male couplin member 5 which has its lower end turne down at6, the exterior diameterslof the coupling 5' and ofthe shoe 3' being ofsubstantially equal dimensions, and between theln there may be ofsuitable hand diameter accordingto the size of the Aholebeing drilledand may be lowered sleeve 7..- The sleeve .is clamped or Aarran ed anintermediate to the Adesired position by the upper sections of thestring of casing 8. The sealing sleeve 7 is preferably jammed or landedtight in the hole tol formf'a water tight seal therewith and thus'prevent the downward flow of water into the entrance at the lower end ofvthe well casing.

According to the thickness of thevwater bearingstrata encountered thesealing device or sleevemay be'of any length and as here shown an upperor extension sleeve 7 is shown as connected to the coupling 5, as Y bymeans of a female coupling member 9 screwing down upon the upper stem ofthe turned down of the sleeve 7*. The coupling member 9 is internallythreaded to -receive the inner casing or secthreaded at its upper end 1na bushin or joint fitting 11 which is externally reuced at 12 to snuglyfit the upper end of the extension section 7 coupling member l5 and beiThe string of casm 8 with theinner casing 2 is lowered tot e desiredstrata location and is jammed or positioned so as1 to forma snugseat forthe seal sleeve 7 upon the'well surface and thus form a naturalfrictional water ti ht seal therewith. In some cases the sea might beinudded up, that is the circulating mud may be forced upon the sealingsleeve until -it is thoroughly surrounded and cuts oi the water. an

variations may .be resorted to lwithin the 'spirit of the invention ashere claimed.

What is c1aiinedis: In combination with lower sections of said stringand held in spaced relation thereto, adapted to be laida string of wellcas-V ing, a plurality of `-sleeves secured tov the two-part coupling.for securing adjacent sections with sleeves thereabout together, saidcoupling consisting of a first part, threaded on to one section andprovided 5 with an annular recess capable of receiving the end of thesleeve disposed about that section, and a second part threaded on to therst part and on to the adjacent section, said second part being providedwith a recess for recelving the end of the sleeve disposed about the'adjacent section.

In testimony whereof I have signed my name to this specification.

FRANCIS A. FETHER.

